Encyclopedia Entry: 74ACT244SC

Product Overview

Category

The 74ACT244SC belongs to the category of integrated circuits (ICs) and specifically falls under the family of octal buffer/line drivers.

Use

This product is primarily used as a buffer or line driver in digital electronic systems. It provides a high-speed, non-inverting interface between different logic levels, ensuring efficient signal transmission.

Characteristics

• High-speed operation: The 74ACT244SC offers fast switching times, making it suitable for applications requiring quick data transfer.
• Non-inverting functionality: It maintains the same logic level at its input and output, ensuring compatibility between different logic families.
• Octal configuration: This IC consists of eight independent buffers, allowing simultaneous handling of multiple signals.
• Wide supply voltage range: It can operate within a broad range of supply voltages, typically between 2V and 6V.
• Low power consumption: The 74ACT244SC is designed to minimize power consumption, making it energy-efficient.

Package and Quantity

The 74ACT244SC is available in a standard 20-pin small-outline integrated circuit (SOIC) package. Each package contains one unit of the IC.

Specifications

• Supply Voltage Range: 2V to 6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Maximum Propagation Delay: 5 ns
• Maximum Output Current: ±24 mA

Pin Configuration

The 74ACT244SC features a 20-pin SOIC package with the following pin configuration:

+---\/---+ OE --|1 20|-- VCC A1 --|2 19|-- B1 A2 --|3 18|-- B2 A3 --|4 17|-- B3 A4 --|5 16|-- B4 A5 --|6 15|-- B5 A6 --|7 14|-- B6 A7 --|8 13|-- B7 GND --|9 12|-- B8 Y1 --|10 11|-- A8 +-------+

Functional Features

• Buffer/Line Driver: The 74ACT244SC acts as a buffer, amplifying and transmitting digital signals without altering their logic levels.
• High-Speed Operation: It offers fast switching times, enabling efficient data transfer in time-critical applications.
• Non-Inverting Functionality: The IC maintains the same logic level at its input and output, ensuring compatibility between different logic families.
• Multiple Signal Handling: With eight independent buffers, it can simultaneously handle multiple signals, enhancing system flexibility.

Advantages and Disadvantages

Advantages

• High-speed operation facilitates quick data transfer.
• Non-inverting functionality ensures compatibility with various logic families.
• Octal configuration allows simultaneous handling of multiple signals.
• Wide supply voltage range enhances versatility.
• Low power consumption contributes to energy efficiency.

Disadvantages

• Limited output current capacity may restrict use in certain high-current applications.
• Propagation delay of 5 ns may not be suitable for ultra-high-speed systems.

Working Principles

The 74ACT244SC operates based on the principles of digital buffering. When an input signal is received, the IC amplifies and transmits it to the corresponding output pin without altering its logic level. This non-inverting functionality ensures seamless compatibility between different logic families. The octal configuration enables the simultaneous handling of multiple signals, making it suitable for complex digital systems.

Application Field Plans

The 74ACT244SC finds applications in various digital electronic systems, including: 1. Microprocessors and microcontrollers 2. Memory modules 3. Communication systems 4. Data acquisition systems 5. Industrial automation equipment

Alternative Models

For those seeking alternative models with similar functionality, the following options are available: - 74HC244: This IC offers similar features but operates at a lower voltage range (2V to 6V). - 74LS244: It provides comparable functionality but operates at a higher voltage range (4.75V to 5.25V).

These alternatives can be considered based on specific project requirements and compatibility with existing systems.

In conclusion, the 74ACT244SC is a high-speed octal buffer/line driver IC that offers non-inverting functionality and wide supply voltage range. Its versatile nature makes it suitable for various digital electronic systems, providing efficient signal transmission between different logic levels.